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首页> 外文期刊>Journal of Aquaculture in the Tropics >OBSERVATIONS ON THE MATURATION AND SPAWNING OF CHANNA PUNCTATA (BLOCH, 1793) IN UKKADAM LAKE, COIMBATORE, TAMIL NADU, INDIA
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OBSERVATIONS ON THE MATURATION AND SPAWNING OF CHANNA PUNCTATA (BLOCH, 1793) IN UKKADAM LAKE, COIMBATORE, TAMIL NADU, INDIA

机译：印度印度泰米尔纳德邦科姆巴托克（UKKADAM）乌干达湖（CHUNNA PUNCTATA）（1793年成年）的成活和裂片观察

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摘要

In the present study, C. punctata was found to breed throughout the year with peaks in April and September. Individuals of C. punctata seem to spawn once in a breeding season. The highest values of gonado-somatic index and relative condition factor were obtained during the peak spawning periods. Females mature earlier than males. The ratio between size at first maturity and maximum length (Lm/La) value for males (0.3904) and for females (0.3695) suggests low mortality rates. The values of Co-efficient of correlation ('r') between total length of fish and fecundity (0.9832), weight of fish and fecundity (0.9963) and ovary weight and fecundity (0.9852) were found to be significant. Sex-ratio deviated from the expected 1:1 ratio during all the months except in July.
机译：在本研究中，发现点状梭菌全年繁殖，四月和九月达到高峰。 punctata punctata的个体似乎在繁殖季节产卵一次。在高峰产卵期获得性腺体指数和相对条件因子的最大值。女性比男性更早成熟。男性（0.3904）和女性（0.3695）的首次成熟大小与最大长度（Lm / La）值之间的比率表明死亡率较低。发现鱼的总长度与繁殖力（0.9832），鱼的重量与繁殖力（0.9963），卵巢的重量与繁殖力（0.9852）之间的相关系数（r）值显着。除7月份外，所有月份的性别比均偏离了预期的1：1比例。

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